D2 for Win64

[Walter Bright]

Is now in a semi-usable state. Problems remain:

         $(LI 80 bit reals are truncated to 64 bits when formatting.)
         $(LI Many math functions are not implemented.)
         $(LI No symbolic debug info is generated.)
         $(LI Cannot catch Win64 structured exception handling exceptions.)
         $(LI VS debugger cannot look at call stack.)
         $(LI Only tested with VS 2010.)
         $(LI No installer.)

So if you're feeling intrepid, give it a whirl. Expect problems.

Yes, you have to have Visual Studio installed. Yes, it generates MS-Coff, and 
requires MS-Link to link.